Writing instrument



FIG. 1 is a perspective view of a writing instrument showing my new design;

FIG. 2 is a front elevational view of thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a front elevational view thereof, the movable gripping supporter ring being moved to and positioned at its one end position in a writing posture;

FIG. 8 is a front elevational view thereof, the movable gripping supporter ring being moved to and positioned at the other end position in a writing posture;

FIG. 9 is an alternate perspective view, the hand depicted by means of broken lines being shown for illustrative purposes only and forming no part of the claimed design; and,

FIG. 10 is a sectional view taken along line 10—10 in FIG. 2. 

The ornamental design for a writing instrument, as shown and described. 